ong considered the second wine of Léoville Las Cases, Clos du Marquis is now a full-fledged Cru, and one of the greatest wines of the very famous Saint-Julien appellation on the Left Bank of the Bordeaux region.
 
A historical vineyard of the Delon estates, Clos du Marquis became a brand in 1902, the date that marks its very first vintage. The owners wanted to distinguish the terroir of Léoville Las Cases from that of Clos du Marquis, 500 meters apart. The location of the vineyard near the Gironde River favours the optimal ripeness of the grapes, because of the role of the river as a thermoregulator. The soil, rich in organic matter, confers a particular character that is truly unique to Clos du Marquis.